SP 09 Exam 2 - CHM 2045 Exam 2 (Form Code A) Spring 2009...

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CHM 2045 Exam 2 (Form Code A) Spring 2009 Instructions: On your scantron sheet enter and bubble in your name , UF ID number (start on the leftmost space and leave any extra spaces blank), and Form Code (see above). You may retain your exam sheet (mark your answers on it and the scantron sheet) and any other sheets. Turn in only your scantron. Check your bubbling carefully – bubbling errors will not be negotiated . Potentially Useful Information: R H = Rhc = 2.18 x 10 –18 J; R = 1.097 x 10 7 m –1 2 2 2 2 34 7 1 8 1 1 1 1 1 6.626 10 J.s 1.097 10 2.9979 10 / f i f i hc h E h E E hcR R mv n n n n h R m c m s      1. Consider the following successive ionization energies (I, in kJ/mol) for an atom that tends to form an ion with the electron configuration of neon. What is the element? I 1 = 738 I 2 = 1,450 I 3 = 7,730 I 4 = 10,500 I 5 = 13,600 (1) O (2) Na (3) Mg (4) F (5) N 2. Arrange Na, Mg and K in order of increasing first ionization energies (1) K < Na < Mg (2) Mg < Na < K (3) Na < Mg < K (4) Na < K < Mg (5) Mg < K < Na 3. Which of the following is paramagnetic? (1) Ca (2) Ca 2+ (3) Ti 2+ (4) Zn (5) Zn 2+ 4. Which of the following has the greatest lattice energy?
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This note was uploaded on 12/28/2011 for the course CHEM 2045 taught by Professor Gower during the Spring '11 term at University of Florida.

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SP 09 Exam 2 - CHM 2045 Exam 2 (Form Code A) Spring 2009...

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